Buying ETFs in malaysia is expensive (not talking about Malaysia index which is not worth) as most index are in other currency. The best way is open a Singapore account > open Interactive Broker > direct bank in SGD (they accept SGD) > then use IB exchange to exchange for the currency you want (people say their exchange rates are even better than money changer) > buy ETF you want from the respected market (recommended is Irish Domiciled ETFs to save cost).

Yes. There are 2 threads on ETFs.

https://forum.lowyat.net/topic/2843370
https://forum.lowyat.net/topic/3396549

But the bad thing about IB is USD10/months fee for inactivity unless you have USD100k with them then it's free. THe USD10/month will reduce if you carry out enough transaction to cover the fees.